Restructuring of source code for serialization

src/message_serialization.cpp

@@ -0,0 +1,82 @@
+/*
+ * message_serialization.cpp
+ *
+ *  Created on: Jul 7, 2019
+ *      Author: ruben
+ */
+
+#include "message_serialization.hpp"
+
+using namespace std;
+
+// Packet serialization and deserialization
+mysql::ReadIterator mysql::deserialize(ReadIterator from, ReadIterator last, PacketHeader& output)
+{
+	from = deserialize(from, last, output.packet_size);
+	from = deserialize(from, last, output.sequence_number);
+	return from;
+}
+
+mysql::ReadIterator mysql::deserialize(ReadIterator from, ReadIterator last, OkPacket& output)
+{
+	// TODO: is packet header to be deserialized as part of this?
+	from = deserialize(from, last, output.affected_rows);
+	from = deserialize(from, last, output.last_insert_id);
+	from = deserialize(from, last, output.status_flags);
+	from = deserialize(from, last, output.warnings);
+	from = deserialize(from, last, output.info);
+	return from;
+}
+
+mysql::ReadIterator mysql::deserialize(ReadIterator from, ReadIterator last, ErrPacket& output)
+{
+	// TODO: is packet header to be deserialized as part of this?
+	from = deserialize(from, last, output.error_code);
+	from = deserialize(from, last, output.sql_state_marker);
+	from = deserialize(from, last, output.sql_state);
+	from = deserialize(from, last, output.error_message);
+	return from;
+}
+
+mysql::ReadIterator mysql::deserialize(ReadIterator from, ReadIterator last, Handshake& output)
+{
+	// TODO: is protocol version (seems similar to packet header) to be deserialized as part of this?
+	// TODO: we can improve efficiency here
+	string_fixed<8> auth_plugin_data_part_1;
+	int1 filler; // should be 0
+	int1 auth_plugin_data_len;
+	string_fixed<10> reserved;
+	std::string_view auth_plugin_data_part_2;
+	from = deserialize(from, last, output.server_version);
+	from = deserialize(from, last, output.connection_id);
+	from = deserialize(from, last, auth_plugin_data_part_1);
+	from = deserialize(from, last, filler); // TODO: check if 0
+	from = deserialize(from, last, &output.capability_falgs, 2); // lower 2 bytes
+	from = deserialize(from, last, output.character_set);
+	from = deserialize(from, last, output.status_flags);
+	from = deserialize(from, last, reinterpret_cast<uint8_t*>(&output.capability_falgs)+2, 2); // higher 2 bytes
+	from = deserialize(from, last, auth_plugin_data_len);
+	from = deserialize(from, last, reserved);
+	from = deserialize(from, last, auth_plugin_data_part_2, max(13, auth_plugin_data_len - 8));
+	from = deserialize(from, last, output.auth_plugin_name);
+	output.auth_plugin_data = auth_plugin_data_part_1;
+	output.auth_plugin_data += auth_plugin_data_part_2;
+	output.auth_plugin_data.pop_back(); // includes a null byte at the end
+	boost::endian::little_to_native_inplace(output.capability_falgs);
+	return from;
+}
+
+void mysql::serialize(DynamicBuffer& buffer, const HandshakeResponse& value)
+{
+	serialize(buffer, value.client_flag);
+	serialize(buffer, value.max_packet_size);
+	serialize(buffer, value.character_set);
+	serialize(buffer, string_fixed<23>{}); // filler
+	serialize(buffer, value.username);
+	serialize(buffer, value.auth_response);
+	serialize(buffer, value.database);
+	serialize(buffer, value.client_plugin_name);
+}
+
+
+